The body parts radical, pronunciation

The radical 月 frequently attaches to characters denoting body parts. In such cases, it represents 肉. My question is, if a Chinese student in China asks his teacher what the radical is for such a character, is it incorrect for the teacher to say "yue"? Are both "rou" and "yue" correct? Is it "yue" pronounced "rou" in these special cases, or is it no longer "yue" at all?